Application of the COST TU1406 Quality Control Framework to a Stone Arch Bridge in Portugal

2019 ◽  
pp. 874-882
Author(s):  
João Amado ◽  
Cristina Costa
Keyword(s):  
Quality Control ◽  
Arch Bridge ◽  
Control Framework ◽  
The Cost

scholarly journals CERTIFICATION OF VEGETABLE OILS AND QUALITY CONTROL IN THE TECHNOLOGICAL PROCESS OF PRODUCTION

2019 ◽  
Vol 2019 (4) ◽  
pp. 119-126
Author(s):  
CH Bekmurotov ◽  
Keyword(s):  
Quality Control ◽  
Technological Process ◽  
Vegetable Oils ◽  
Raw Materials ◽  
Cottonseed Oil ◽  
Product Classification ◽  
Cotton Seeds ◽  
The Cost

The article reviewed the certification and quality control of the technological process for the production of vegetable oil. There is a procedure for packaging, quality control of products, determination of quality indicators and quality control of finished products. The procedure for using refined cottonseed oil and its varieties, the requirements for placement and storage of vegetable oils, as specified in the regulatory documents, the quality control of vegetable oils and other solutions for cottonseed oil are provided. The gas analyzer shows a solution for measuring the amount of solution by painting the tubes of a mixture of gas and air in oil. Detailed information on the production of vegetable oils, the cost of raw materials, the level of fat content of cotton seeds and the methods used to produce oil from cotton seeds. Methods for certification of vegetable oils, types of quality control, methods of testing and quality determination are presented. It was shown that the procedure for refined production of cottonseed oils and their types, as well as the state of the product classification of products based on the method of producing vegetable oils for consumer purposes, analysis of the sequence of refined oils and refining processes.

Quality control plan for road bridges – overview of COST Action TU1406 WG3 final report

2019 ◽  
Author(s):  
Matej Kušar ◽  
Poul Linneberg ◽  
Joao Amado ◽  
Snežana Mašović ◽  
Nikola Tanasić ◽  
...  
Keyword(s):  
Quality Control ◽  
Failure Modes ◽  
Final Report ◽  
Control Plan ◽  
Cost Action ◽  
Working Groups ◽  
Group 3 ◽  
Arch Bridges ◽  
The Cost ◽  
Damage Processes

<p>The main objective of the COST Action TU1406 is to develop a guideline for the establishment of Quality Control plans for roadway bridges. The guideline is based on conclusions of Working groups 1 and 2 of the Action and is further developed with the contributions and findings of members of Working group 3. The paper presents the overview of the developed framework, where gradual damage processes as well as sudden events are being addressed in evaluation of Key Performance Indicators. The proposed framework relies on data from design and construction phase, as well as from results from visual inspections that are used for an assessment of safety and serviceability - the primary concerns of bridge managers. Special attention is aimed at possible Failure modes and related bridge Vulnerable zones. These are, for instance high moment regions, high shear regions and constructions joints, but can also be zones of bridge conceptual weaknesses. Since there are differences in design and materials for various bridge types, the suitability of the framework is tested separately for girder/frame bridges and arch bridges. Due to the specifics of sudden events, the application of the framework is given separately from gradual damage processes. Emphasis is given on flooding and scour as these are the most common culprits of bridge failures. The steps in the implementation of the framework are briefly shown and an illustrative example is presented.</p>

A Generic Quality Control Framework for Fetal Ultrasound Cardiac Four-Chamber Planes

2020 ◽  
Vol 24 (4) ◽  
pp. 931-942 ◽  
Author(s):  
Jinbao Dong ◽  
Shengfeng Liu ◽  
Yimei Liao ◽  
Huaxuan Wen ◽  
Baiying Lei ◽  
...  
Keyword(s):  
Quality Control ◽  
Fetal Ultrasound ◽  
Control Framework ◽  
Generic Quality

scholarly journals Defining the best quality-control systems by design and inspection

1997 ◽  
Vol 43 (5) ◽  
pp. 873-879 ◽  
Author(s):  
C Martin Hinckley
Keyword(s):  
Quality Control ◽  
Task Complexity ◽  
Process Variation ◽  
Control Process ◽  
Statistical Quality Control ◽  
Cultural Changes ◽  
Statistical Quality ◽  
The Many ◽  
The Cost ◽  
Inspection Techniques

Abstract Not all of the many approaches to quality control are equally effective. Nonconformities in laboratory testing are caused basically by excessive process variation and mistakes. Statistical quality control can effectively control process variation, but it cannot detect or prevent most mistakes. Because mistakes or blunders are frequently the dominant source of nonconformities, we conclude that statistical quality control by itself is not effective. I explore the 100% inspection methods essential for controlling mistakes. Unlike the inspection techniques that Deming described as ineffective, the new “source” inspection methods can detect mistakes and enable corrections before nonconformities are generated, achieving the highest degree of quality at a fraction of the cost of traditional methods. Key relationships between task complexity and nonconformity rates are also described, along with cultural changes that are essential for implementing the best quality-control practices.

scholarly journals Dynamic instability of clathrin assembly provides proofreading control for endocytosis

2019 ◽  
Vol 218 (10) ◽  
pp. 3200-3211 ◽  
Author(s):  
Yan Chen ◽  
Jeffery Yong ◽  
Antonio Martínez-Sánchez ◽  
Yang Yang ◽  
Yumei Wu ◽  
...  
Keyword(s):  
Quality Control ◽  
Single Molecule ◽  
Dynamic Instability ◽  
Single Molecule Imaging ◽  
Coated Pits ◽  
A Cell ◽  
The Cost ◽  
Dynamic Exchange ◽  
Cargo Sorting

Clathrin-mediated endocytosis depends on the formation of functional clathrin-coated pits that recruit cargos and mediate the uptake of those cargos into the cell. However, it remains unclear whether the cargos in the growing clathrin-coated pits are actively monitored by the coat assembly machinery. Using a cell-free reconstitution system, we report that clathrin coat formation and cargo sorting can be uncoupled, indicating that a checkpoint is required for functional cargo incorporation. We demonstrate that the ATPase Hsc70 and a dynamic exchange of clathrin during assembly are required for this checkpoint. In the absence of Hsc70 function, clathrin assembles into pits but fails to enrich cargo. Using single-molecule imaging, we further show that uncoating takes place throughout the lifetime of the growing clathrin-coated pits. Our results suggest that the dynamic exchange of clathrin, at the cost of the reduced overall assembly rates, primarily serves as a proofreading mechanism for quality control of endocytosis.

QUALITY CONTROL COMMITTEE LABORATORY OF THE MINNEAPOLIS-ST. PAUL MARKET1

1970 ◽  
Vol 33 (8) ◽  
pp. 316-318
Author(s):  
Roy E. Ginn
Keyword(s):  
Quality Control ◽  
Raw Milk ◽  
Steering Committee ◽  
University Of Minnesota ◽  
Health Agencies ◽  
Processing Plants ◽  
The Cost ◽  
The University ◽  
Milk Market

The Quality Control Committee laboratory is a unique organization which was started approximately 32 years ago by Dr. Harold Macy of the University of Minnesota. The dairy industry operates a laboratory which does most of the official testing for the health agencies in the Minneapolis-St. Paul market. With higher costs of operations many health agencies are trying to find ways of saving money, and still have a satisfactory laboratory program to protect the public's health. Some health agencies are using industry laboratories, and the cost is passed on to the customer rather than the taxpayer. The laboratory functions are to evaluate the quality of the raw milk supply from 4238 Grade A producers, and the finished products from 17 processing plants. The laboratory also does the official butterfat testing for the Federal Milk Market Administrator for Order 68. This organization is supervised by a Steering Committee of nine individuals who represent the University of Minnesota; the producer cooperatives, who supply the raw milk; and the Grade A fluid milk processors from the Minneapolis-St. Paul market. All of the routine results from the laboratory are provided to the health agencies. The health agencies and laboratory manager have a close working relationship to coordinate the program. In order for an organization like this to work, it takes cooperation from all parties involved.

Identification of an unknown coefficient in KdV equation from final time measurement

2016 ◽  
Vol 24 (4) ◽  
Author(s):  
Kumarasamy Sakthivel ◽  
Soundararajan Gnanavel ◽  
Alemdar Hasanov ◽  
Raju K. George
Keyword(s):  
Optimization Problem ◽  
Kdv Equation ◽  
Identification Problem ◽  
Stability Estimate ◽  
Unknown Coefficient ◽  
Final Time ◽  
Physical Systems ◽  
Control Framework ◽  
The Cost ◽  
Variable Topography

AbstractIn this article, we study an inverse problem of reconstructing a space dependent coefficient in a generalized Korteweg–de Vries (KdV) equation arising in physical systems with variable topography from final time overdetermination data. First the identification problem is transformed into an optimization problem by using optimal control framework and existence of a minimizer for the cost functional is established. Then we prove a stability estimate for retrieving the unknown coefficient in KdV equation with the upper bound of given measurements. The local uniqueness of the coefficient is also discussed.

Research on assembly tolerance allocation and quality control based on fuzzy reliability

2016 ◽  
Vol 230 (20) ◽  
pp. 3755-3766 ◽  
Author(s):  
Min-Long Wang ◽  
Xin-Tian Liu ◽  
Yan-Song Wang ◽  
Xiao-Lan Wang ◽  
Hui Guo ◽  
...  
Keyword(s):  
Quality Control ◽  
Product Quality ◽  
Optimization Design ◽  
Tolerance Allocation ◽  
Quality Loss ◽  
Fuzzy Reliability ◽  
Assembly Tolerance ◽  
Processing Cost ◽  
The Cost ◽  
The Relationship

The enhancement between cost and reliability is the developmental direction of modern manufacturing enterprises. On the basis of fuzzy theory, the relationship among the cost of product quality loss, the reliability of the assembly dimension chain and assembly tolerance is studied together in this article. Processing cost can be considerably reduced and the target of quality engineering is realized by optimization design. As an example, a tolerance design model is determined for gear and shaft assembly. Moreover, the mathematical model of the relationship between the cost of fuzzy quality loss and the fuzzy reliability of the assembly dimension chain is determined in combination with a processing cost function. The optimistic results of key dimensions of gear and shaft assembly are identified through through orthogonal experiments. This method can facilitate product quality control by enterprises and the realization of economic targets. The study findings can also serve as references for other similar studies.

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